Trimethoprim, >98,0%, 25g

Di(propylene glycol) methyl ether, 1000µg/ml in MeOH, 1ml

n-Heneicosane-d44, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 39756-37-1

Aminomethyl phosphonic acid, 100 ng/µl, 1ml